feat: 完成代码

lib/app/services/api_service/api.dart

@@ -2,6 +2,8 @@
 abstract class Api {
   /// 游客登录查看是否已经注册
   static const String kr_isRegister = "/v1/app/auth/check";
+  /// 判断邮箱和当前设备是否已存在订阅
+  static const String kr_checkSubscription = "/v1/public/user/subscribe_status";
 
   /// 注册
   // static const String kr_register = "/v1/auth/register";
@@ -21,7 +23,7 @@ abstract class Api {
   static const String kr_deviceLogin = "/v1/auth/login/device";
 
   /// 删除账号
-  static const String kr_deleteAccount = "/v1/app/user/account";
+  static const String kr_deleteAccount = "/v1/public/user/delete_account";
 
   /// 忘记密码-设置新密码
   static const String kr_setNewPsdByForgetPsd = "/v1/app/auth/reset_password";

lib/app/services/api_service/kr_auth_api.dart

@@ -8,6 +8,7 @@ import 'package:kaer_with_panels/app/mixins/kr_app_bar_opacity_mixin.dart';
 import 'package:kaer_with_panels/app/services/api_service/api.dart';
 import 'package:kaer_with_panels/app/model/enum/kr_request_type.dart';
 import 'package:kaer_with_panels/app/model/response/kr_is_register.dart';
+import 'package:kaer_with_panels/app/model/response/kr_check_subscription.dart';
 import 'package:kaer_with_panels/app/model/response/kr_login_data.dart';
 import 'package:kaer_with_panels/app/network/base_response.dart';
 import 'package:kaer_with_panels/app/network/http_error.dart';
@@ -43,6 +44,36 @@ class KRAuthApi {
     return right(baseResponse.model.kr_isRegister);
   }
 
+  /// 检查账号和邮箱是否都已经有订阅（只有两者都订阅才返回 true）
+  Future<Either<HttpError, bool>> kr_checkSubscription(String email) async {
+    final Map<String, dynamic> data = <String, dynamic>{};
+    data['email'] = email;
+
+    // 获取当前设备 ID
+    final deviceId = KRDeviceInfoService().deviceId ?? 'unknown';
+    KRLogUtil.kr_i('设备ID: $deviceId', tag: 'KRAuthApi');
+    data["identifier"] = deviceId;
+
+    // 发起请求
+    BaseResponse<KRCheckSubscription> baseResponse = await HttpUtil.getInstance()
+        .request<KRCheckSubscription>(
+      Api.kr_checkSubscription,
+      data,
+      method: HttpMethod.POST,
+      isShowLoading: true,
+    );
+
+    // 请求失败
+    if (!baseResponse.isSuccess) {
+      return left(HttpError(msg: baseResponse.retMsg, code: baseResponse.retCode));
+    }
+
+    final subscription = baseResponse.model;
+
+    // 只有设备和邮箱都已订阅才返回 true
+    return right(subscription.isFullySubscribed);
+  }
+
   /// 注册（仅支持邮箱+密码，验证码和邀请码可选）
   Future<Either<HttpError, String>> kr_register(
       String email,
@@ -139,8 +170,9 @@ class KRAuthApi {
   }
 
   /// 删除账号
-  Future<Either<HttpError, String>> kr_deleteAccount(String code) async {
+  Future<Either<HttpError, String>> kr_deleteAccount(String email, String code) async {
     final Map<String, dynamic> data = <String, dynamic>{};
+    data['email'] = email;
     data['code'] = code;
 
     BaseResponse<dynamic> baseResponse = await HttpUtil.getInstance()